Changed Android activity launch mode

[sethkfman]

Description

Updated the launch mode in Android

Checklist

• [NA] There is a related GitHub issue
• [NA] Tests are included if applicable
• [NA] Any added code is fully documented

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[rickycodes]

LGTM

[cortisiko]

Scenarios I covered:

• I tested using the hardware back button at various points in the app: Going through the swaps flow then tapping on the hardware back button until I get to the wallet view. When I got to the wallet view I hit the home button then reopened the app, and tested the hardware back button on the send flow, While on the browser view, the Settings view

• I also tested using the in-app back button: tested this on the settings view, On the send flow, on the swaps flow

• I tested logging out of the app, landing on the log-in view then tapping the hardware back button. I was not taken back to the wallet view

• I tested deep links with the app closed and in the background. Wallet connect deep links as well.
  I tested using the hardware back button as well as the in-app back button on the change password view.

• I made a couple of transactions.

this is 👍